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The Fuzzy Controller for Spark Ignition Engine Knock Control

스파크 점화기관의 노킹제어를 위한 퍼지제어기 개발

  • Lee, Jae-Hyung (Dept. of Mechanical Engineering, Graduate school of Hongik University) ;
  • Ham, Yun-Young (Dept.of Mechanical Engineering, Graduate School of Yonsei University) ;
  • Chang, Kwang-Soo (Department of Mechanical Engineering, Hong-Ik University) ;
  • Chun, Kwang-Min (Dept.of Mechanical Engineering, Yonsei University)
  • 이재형 (홍익대학교 대학원 기계공학과) ;
  • 함윤영 (연세대학교 대학원 기계공학과) ;
  • 장광수 (홍익대학교 기계공학과) ;
  • 전광민 (연세대학교 기계공학과)
  • Published : 1997.01.01

Abstract

A variety of approaches have been investigated for the application of spark-ignition engine knock control. The control method implemented, here as "Fuzzy Control", has the advantage of not requiring the knowledge of a mathematical model of the controlled object and is more robust and flexible than conventional approaches. Knock control in this study is performed using vibration signal which is measured with accelerometer attached to the cylinder block of a 1498cc four-cylinder spark-ignition engine. The experimental results obtained with this method are compared with those obtained with a knock interval controller and with those of a conventional controller. Those results illustrate better performance in torque than knock interval controller and conventional controller.ontroller.

Keywords

Knocking;Cylinder Block Vibration Signal;Knock Occurance Interval;Desired Knock Interval;Fuzzy Logic